New testcase that ipsccp should handle.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18789 91177308-0d34-0410-b5e6-96231b3b80d8

test/Transforms/SCCP/ipsccp-gvar.ll

@@ -0,0 +1,23 @@
+; RUN: llvm-as < %s | opt -ipsccp | llvm-dis | not grep global
+
+%G = internal global int undef
+
+implementation
+
+void %foo() {
+	%X = load int* %G
+	store int %X, int* %G
+	ret void
+}
+
+int %bar() {
+	%V = load int* %G
+	%C = seteq int %V, 17
+	br bool %C, label %T, label %F
+T:
+	store int 17, int* %G
+	ret int %V
+F:
+	store int 123, int* %G
+	ret int 0
+}